An INDO-MO Study of the Conformations and Electronic Structures of HCHOH+, CH3CHOH+, (CH3)2COH+, HCO2H2+, CH3CO2H2+, and CH3OH2+
- 1 September 1976
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 49 (9) , 2397-2402
- https://doi.org/10.1246/bcsj.49.2397
Abstract
INDO-SCF calculations were performed on several protonated compounds, HCHOH+ CH3CHOH+, (CH3)2COH+, HCO2H2+, CH3CO2H2+, and CH3OH2+, and also on the corresponding parent molecules in order to investigate their conformations and electronic structures. Geometric optimization resulted in reasonable conformations as compared with the previous ab initio calculations and in sufficient magnitudes of the energy differences between the rotational isomers in comparison with the NMR observations. The change in the electronic structures of the parent molecules due to protonation is also discussed by paying attention to the polarization caused by electron delocalization, hybridization at the proton-bound oxygen atom, the protonation energy, and the ionization potentials.Keywords
This publication has 15 references indexed in Scilit:
- An Ab Initio Study of the Effect of Substituents on Protonation of the Carbonyl GroupCanadian Journal of Chemistry, 1974
- Protonated heteroaliphatic compoundsChemical Reviews, 1970
- Self-Consistent Molecular Orbital Methods. V. Ab Initio Calculation of Equilibrium Geometries and Quadratic Force ConstantsThe Journal of Chemical Physics, 1970
- Ab Initio LCAO–MO–SCF Calculations on Formic Acid, Formate Ion, and Protonated Formic AcidThe Journal of Chemical Physics, 1970
- Nonempirical Molecular-Orbital Calculations for Protonated Formaldehyde, Acetaldehyde, and Formic AcidThe Journal of Chemical Physics, 1968
- Ab Initio Calculations of the Barriers to Internal Rotation of CH3CH3, CH3NH2, CH3OH, N2H4, H2O2, and NH2OHThe Journal of Chemical Physics, 1967
- Dipole Moment of Formic Acid, HCOOH and HCOODThe Journal of Chemical Physics, 1962
- Calculation of Energy Levels for Internal Torsion and Over-All Rotation. II. CH3CHO Type Molecules; Acetaldehyde SpectraThe Journal of Chemical Physics, 1957
- Ionization Potentials of Some Organic Molecules. II. Aliphatic CompoundsBulletin of the Chemical Society of Japan, 1956
- The Methyl Alcohol Molecule and Its Microwave SpectrumThe Journal of Chemical Physics, 1953